In shotgun sequencing, how is a complete sequence of a genome reconstructed?
A. The entire genome is directly sequenced chromosome by chromosome.
B. The genome is fragmented and sequences of each fragment are arranged so that overlapping regions are identified
C. The sequences of a large number of individuals is obtained and "averaged" to obtain the complete sequence.
D. The position of each marker and gene are first mapped relative to regions for which the genomic sequence is not known.
B
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About half of all flowering plant species, including many important crop plants, are ____
a. polyploids b. haploids c. aneuploids d. monoploids e. diploids
Homeostasis provides what kind of environment?
a. positive b. relatively constant around a set point c. limiting d. changing e. chemical and physical
The polymerase chain reaction requires endonuclease to cut samples of DNA.
Answer the following statement true (T) or false (F)
Movable spines are found on ____ of the phylum Echinodermata
a. Ophiuroidea b. Echinoidea c. Asteroidea d. Crinoidea e. Holothuroidea